FR3035068A1 - ADDITIONAL ENERGY EQUIPMENT FOR A TRIMARAN WITHOUT SIDE SAILING MAT - Google Patents

Abstract

The invention consists in equipping a multi-hull-trimaran-catamaran-without vertical mat, with lateral sails, of all the current devices making it possible to produce electricity by natural, renewable energies to feed the lithium-ion accumulators (or other ) used for electric motors operating the ship's traction propellers and for the electric motors necessary for the operation of the ship The equipment consists of installing one or more vertical wind turbines on the sailing vessel's upper deck to produce electricity, ( 6) and (7) as well as photovoltaic panels (14) and (15) placed on the longitudinal members connecting the floats of the ship (12) and (13) to the hull (3) as well as hydro generators (16) and ( 17) placed under the floats. FIG (5) These devices are particularly interesting for allowing a sailboat with lateral sails to make transoceanic crossings without fear of the lack of episodic wind.

Description

The ship project presented is a trimaran sailboat, without mat, with side sails This matless trimaran, sailboat with side sails, is designed for transoceanic crossings, with good performance, maximum safety, and constant navigation. In safety: the very design of this matless trimaran, with side sails, makes it possible to have all the equipment in the immediate vicinity of the hull center of gravity. The removal of the mats of very great heights (from 30 to 40 meters) makes it possible to sail in high wind without fear of a capsize or a dismasting. A mat of height 40 meters and diameter 1.20 m, represents a surface of 48 m2; and wind Beaufort 3 / -4 (25 1m / h) is a power of 18 KW on the mat without sail! A sudden wind jump can capsize a trimaran already in bed - In constant navigation In a transoceanic race, as for example Route du Rhum, or Vendée Globe - (around the world) - the navigator will cross an area of 100 km to 200 km wide around the equator, where the wind becomes non-existent or so irregular that sailing is practically impossible I The sailboats are immobilized in the --pot at the black - zone, and some can remain 5 busy days to search the wind to escape.

The equipment of the presented sailboat, trimaran without mast, makes it possible to be able to use all the current solutions of natural energy production, to produce enough electricity for electric motors of auxiliary traction .. Thus equipped, this trimaran without mast, with sails side, can cross - the pot to black - without difficulty. keeping his usual speed.

The studied vessel is therefore a hybrid sailboat: wind - electricity Wind It is the use of the sails of this trimaran sailboat without mast and it is the main and usual energy of this ship. Electricity This is the use of the current means of natural electricity production - can be installed on the trimaran without mat: Aeolian, --- can be installed since there is no mat, nor sail, neither shrouds Photovotaic panels --- hydrogenators ---. and of course Lithium Ion batteries for electric motors.

3035068 2 Study to propose a good dimension to this trimaran without mast An overview of the sailboats in the transoceanic races, shows an average sail of 200 m2, it is the starting point. for a perfomiant sailboat.

The trimaran without mat has side sails symmetrical with respect to the hull. That is to say that these 200 m2 are distributed in 100m2 on each side for reasons of mechanical resistance it is proposed to port and starboard 2 sails of 50m2 or 200 m2 in total .The chassis carries sails with pneumatic tubes, will be 10 meters long and 5 meters wide. This leads us to: a hull length above 20m 10 a hull length of 25 meters is chosen for the main hull. The width will be 5.80 m - considering the accessories to install. The draft would be 1.50 m and the displacement about 18 tons 2 floats length 20 meters- 4 sails of 50m2 each 15 This wing of 200 m2 would give a power - (1m2 Beaufort 3-4 = 0, 36 Watt) - 70 KW, sufficient to propel the trimaran to about 12 knots. The goal is to maintain this constant speed, even without wind - pot to black - In this case it is used propulsion by electric motors. It would be necessary therefore an electric motor of 70 KW,: it is chosen to take 20 2 electric motors of 40 KW, indeed for a trimaran of 25 meters the maneuvers are easier with 2 propellers, we will have 1 motor of 40 KW at each propeller. The production of electricity These electric motors will be powered by the electricity supplied by lithium-ion (phosphate-iron) accumulators very conventional, and very reliable, used in the automobile 25 by millions for 10 years. Current Li-ion batteries have the characteristics of 140 watts / h for 1 kg of battery.

3035068 3 Aeoliennes They will be vertical wind turbines of the Darrieus or Savonius type. There are vertical wind turbines of 5.50m diameter, height 5.50m, each providing 5 10 KW, under wind of 35 Km hour. under any wind direction. It is possible to place 2 wind turbines the width of the ship being 5.80 meters and the length being 25 meters. They will be placed on each side of the ship's GC center of gravity for stability. Of course they will be placed on strucures independent of the hull and anti seismic shock absorbers or silent block.

10 There are commonly Rosta or Aura type The electricity supplied by these wind turbines will be stored in the accumulators. Accumulators. The Li-ion accumulators have the current characteristics of 140 watts / h for 1 Kg 15 of accumulator .- 1000 kg providing 140 KWh --- To propel this boat 25 m long, 18 tons displacement, it takes about 10 knots (18 Km / h), 40 KW. To cross a zone of black pot of 180 km it takes 10 hours of electric navigation, a need of 40 KW during 10 hours 440 KW / h or a base of accumulators weight 3000 kg - However safe for 20 races transoceanic, we will ship 3,500 kg of batteries. The accumulators are supplied in packs of 48 kg it will be easy to arrange the packs in the hold around the center of gravity hull to maintain the stability of the boat. I said that in the equatorial regions of the doldrums, there is no wind, of course, but there is sun, which will be used for voltaic panels. which will be insatllé on this 25 trimaran without mat. The photovoltaic panels The matless trimaran with side sails, has two floats held at the central hull by two side members by side In the proposed boat we would have with floats of 22 meters long, 10 m long, 30 It is possible to install photovoltaic panels of 6 meters wide by 20 m of Ion, which makes a surface of 120 m2 per side, in total 240 m2 of panels. The effective power is 100 ', att / m2 - For 240 m2 the power will be 24 Kw / h This energy will be stored in the Li-ion accumulators. It should be noted that in the doldrums area, there is no wind, but there is sun 3035068 4 so we can add this reserve to operate the engines - for example start the 2nd engine 40 KW to escape faster from the area. The weight of this installation is 10 kg per m2 panel. so for 120 M2 per side, 1200 kg to port and 1200 Kg to starboard. Each float has a displacement of about 4 tons and the panels also resting on the side members, these panels will have no influence on the behavior of the ship. However, care must be taken to install carefully to withstand the condition of the ship. For the past few years, Hydrogenators have been used extensively in transoceanic races.

Hydrogenerators These are simple devices, the propeller is powered by the wave current and produces electricity - which will be stored in the battery pack They are effective from a wave movement by 2-3 Beaufort ( 20 Km / h) .. There are hydro generators of 10 KW and we will have 1 in each float.

The weight of these hydro generators is about 100 kg for 10 KW. Floats can support this weight in addition to the panels. There is therefore a power output of 20 KW to direct to the battery pack. Finally the production of additional energy to energy of the lateral sails, is in wind turbines: 2 wind turbines of 10 KW = 20 KW 20 in photovoltaics 240 m2 providing 24 KW in hydrogenator 2 units supplying 20 KW total: ... 6 KW which is interesting ; because at the ratio of 0.310 KW per m2 of sail, this equates to about 200m2 of sail to be added to the wing of the side sails 200 m2. So even without gigantic mast, using the current and ecological means 25 we arrive at a sailing equivalent of 400 m2 --- wing trimarans good race! Electric motors There will be 2 main engines of 40 KW each-- As a rule of thumb, only 1 engine of 40 KW will be used, the second motor acting as spare engine. But in case of ideal conditions for speed the navigator can Futilser-- 40 KW is 8 to 10 30 knots! more. All other engines used are also common, sealed motors, available from all major manufacturers.

3035068 5 Conclusion This matless trimaran with side sails shows another way of sailing. Indeed the navigator can approach difficult wind zones, without worry of dematage 5 (there is no mast) - without acrobatics (there must not be any important gite in the described ship) - with enough energy to not be slowed down in --pot zones to black .--- The navigator will be in command of the various electric motors in the command bridge, watching the dials as a pilot plane. This will be another way to navigate- and fajoute, without a drop of fuel ....

Of course there may be races or regattas, the skill of the navigator in negotiating the wind and its engines will make the result.

3035068 6 trimaran sailboat ship without mat to side sails It would be interesting to make the weight estimate of this boat we have a boat 25 m long, 5.80 m wide draft of 1.50m 5 with a displacement of 18 tonnes - this displacement will be checked on basin - but we are in a good approximation. As a rule the ballast in this kind of sailing ship is 30% which gives us a ballast of 5.400 Kg.- theoretical- Weight estimate 10 we know the weight of the main accessories Accumulators Li-ion packs of battery 3.500 kg Engines electric motors plus accessories (regulators, inverters) per motor 40 KW 200 Kg each --- 2 motors-- 400 kg 15 Other electric motors to operate the chassis. door sails (4 motors) 400 kg Hydro generators 2 of 10 Kw with accessories 300 kg Photovoltaic panels 20 2 panels of 120 m2 to 10 kg / m2 2.400 kg is a total of 7000 kg (all the necessary ballast is a useful ballast- - in particular battery packs that can be placed around the center of gravity - and that can be arranged to exactly balance the weight of the two motors of 40 kw.

The described vessel shows that it is possible to build a matless trimaran with side sails, and by applying the current techniques, to make it sail safely, at a good steady speed.

30 3035068 7 Description of the surveyed vessel Trimaran without sails with side sails 5 Page 8 FIG 1 Ship with the arrangement of the 4 side sails on the sashes ((3) (2) (4) arranged on the hull (5) FIG 2 Page 9 FIG 3 the 2 wind turbines (6) --- (7) are placed on their superstructures resting on the anti-seismic dampers or silent blocks, (8) and (9) FIG 4 The superstructure (11) rests on the hull (5) The solar panels (12) and (13) are placed on the connecting beams of the floats to the main hull. FIG. 6 View of the ship with the wind turbines and the solar panels and hydro generators (14) and (15) 20 25 30 40

Claims (4)

CLAIMS1) This innovation concerns sailboats monohull and sailing multihull 5 (catamaran and trimaran) without mat with side sails, in particular, for example a trimaran. This matless trimaran is characterized in that it is equipped with side sails placed on sail carrier frames (1) (2) (3) (4) on each side of the hull (5). The flexible and elastic sails are formed of pnetunatic rolls. The chassis carries 10 sails are controlled by electric motors giving them the desired angle with the keel. 2) This trimaran is characterized in that it has no mast or sail, but sails side, and that it can be equipped with vertical wind turbines on the upper deck of the ship since there is no mat neither vertical sails nor shrouds. 15 3) This matless trimaran with side sails is characterized in that it is equipped with additional energy means to the wind which acts on the side sails, such as wind turbines, photovoltaic panels placed on the spars connecting the central hull to the floats, as well as that hydro generators placed in the floats., and that it is a hybrid sailboat (wind + natural electric energy) 20 4) This matless trimaran with side sails is characterized in that the feasibility study confirms that this sailboat, hybrid trimaran - (wind + natural electric energy) - can be built and used for a fast safe navigation.